CN114803875A - Novel bank bridge energy-saving lifting device - Google Patents
Novel bank bridge energy-saving lifting device Download PDFInfo
- Publication number
- CN114803875A CN114803875A CN202110865476.1A CN202110865476A CN114803875A CN 114803875 A CN114803875 A CN 114803875A CN 202110865476 A CN202110865476 A CN 202110865476A CN 114803875 A CN114803875 A CN 114803875A
- Authority
- CN
- China
- Prior art keywords
- shore bridge
- winding drum
- hoisting device
- energy
- saving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004804 winding Methods 0.000 claims abstract description 55
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 27
- 239000010959 steel Substances 0.000 claims abstract description 27
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
- B66C19/007—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries for containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C11/00—Trolleys or crabs, e.g. operating above runways
- B66C11/02—Trolleys or crabs, e.g. operating above runways with operating gear or operator's cabin suspended, or laterally offset, from runway or track
- B66C11/04—Underhung trolleys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C5/00—Base supporting structures with legs
- B66C5/02—Fixed or travelling bridges or gantries, i.e. elongated structures of inverted L or of inverted U shape or tripods
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
The invention discloses a novel shore bridge energy-saving hoisting device which is arranged on a shore bridge device, wherein the novel shore bridge energy-saving hoisting device is arranged on a hoisting device in a shore bridge machine room, the hoisting device comprises two symmetrically arranged reduction boxes, an input shaft, a first output shaft and a second output shaft are arranged on the reduction boxes, a second winding drum is arranged between the two symmetrically arranged reduction boxes, and two ends of the second winding drum are respectively connected with second output shafts of the two symmetrically arranged reduction boxes. The invention has simpler structure, the hoisting device comprising two reduction boxes, a first winding drum and a second winding drum which are symmetrically arranged is arranged in the machine room, and the hoisting device is connected with the counterweight part through the counterweight steel wire rope arranged on the first winding drum and the hoisting steel wire rope arranged on the second winding drum, thereby achieving the purpose of offsetting partial weight of the trolley lifting appliance and goods by using the counterweight part. The invention can achieve the purposes of energy saving and consumption reduction, and can also reduce the operation cost of the shore bridge system.
Description
Technical Field
The invention relates to a novel energy-saving hoisting device for a shore bridge, and belongs to the technical field of shore bridge equipment.
Background
The shore bridge is used as key loading and unloading equipment of the container terminal, the operation is frequent, the energy consumption is large, and the reduction of the energy consumption of the shore bridge is an urgent need of a port. Aiming at the shore bridge energy-saving technology, at present, modes such as reducing power utilization equipment and reducing operation parameters of the shore bridge are mostly adopted, but the normal use and the efficiency of the shore bridge are influenced to a certain extent. The counterweight energy-saving technology adopted by some technologies is characterized in that a heavy object and a counterweight are directly connected through a steel wire rope to offset a part of weight, so that the energy-saving purpose is achieved, but the winding of the steel wire rope is complex, a set of steel wire rope needs to be separately arranged, and the arrangement difficulty of the steel wire rope is high. The other type is that the counterweight is directly wound on a shore bridge hoisting drum through a steel wire rope, so that the length of the hoisting drum needs to be increased, the service life of the hoisting drum is influenced, and no practical engineering application exists at present.
A lifting energy-saving mechanism is developed by a company before, but two reduction boxes are additionally added to adjust the speed ratio of a counterweight winding drum, the whole mechanism comprises two counterweight winding drums and two lifting winding drums, the total number of the four winding drums is four, the mechanism is arranged too complicated, and the mechanism is difficult to arrange in an actual machine room. The prior art needs to be innovated and a new energy-saving system needs to be researched.
Therefore, the company develops a counterweight energy-saving system in a mechanism torque counteracting mode, and the weight of a part of a lifting appliance and goods is counteracted through a counterweight, but the energy-saving system is difficult to be well connected with a lifting system. Therefore, the company provides a novel shore bridge energy-saving lifting device, and finally realizes the energy-saving effect when the shore bridge is lifted and landed.
Disclosure of Invention
The invention aims to provide a novel shore bridge energy-saving lifting device, which solves the problem of connection between an energy-saving system and a lifting system in the existing shore bridge system and realizes the energy-saving effect when the shore bridge device is lifted.
In order to solve the technical problems, the invention adopts the following technical scheme: a novel shore bridge energy-saving hoisting device is arranged on a shore bridge device, the novel shore bridge energy-saving hoisting device is arranged on a hoisting device in a shore bridge machine room, the hoisting device comprises two symmetrically arranged reduction boxes, an input shaft, a first output shaft and a second output shaft are arranged on the reduction boxes, and the input shaft and the first output shaft are arranged at the same side; the lifting device further comprises a motor device connected with the input shaft of the reduction gearbox, and a first winding drum connected with the first output shaft of the reduction gearbox, a second winding drum is arranged between the two symmetrically arranged reduction gearboxes, and two ends of the second winding drum are respectively connected with the second output shafts of the two symmetrically arranged reduction gearboxes. The motor device is connected to an input shaft of the reduction gearbox through a coupling at the outer side close to the sea side in the machine room.
In the novel energy-saving shore bridge lifting device, the lifting device further comprises two couplers, and the input shaft of each reduction gearbox is connected with the motor device through one coupler.
In the novel energy-saving hoisting device for the shore bridge, the first winding drum is provided with a counterweight steel wire rope connected with the counterweight. The first reel is connected with a counterweight through a counterweight steel wire rope, and the counterweight can move in the support bridge leg. The motor device outputs different rotating speeds to the second winding drum connected with the reduction gearbox through different speed ratios of the reduction gearbox. Therefore, the stroke of the counterweight can be adjusted, and the height of the support bridge column leg can meet the stroke requirement of the counterweight.
In the novel shore bridge energy-saving hoisting device, the second winding drum is provided with a hoisting steel wire rope connected with a trolley hoisting tool.
In the novel energy-saving hoisting device for the shore bridge, a pitching device and a trolley travelling device are further arranged in the shore bridge machine room, and the trolley travelling device is arranged between the pitching device and the hoisting device.
In the novel shore bridge energy-saving hoisting device, the first winding drum is provided with a first braking device.
In the novel shore bridge energy-saving hoisting device, the second winding drum is provided with a second braking device.
In the novel energy-saving hoisting device for the shore bridge, the shore bridge device comprises a support bridge column leg, a rectangular empty slot is formed in the support bridge column leg, and the counterweight is arranged in the rectangular empty slot. The counterweight part is connected with the first reel through a counterweight steel wire rope, so that the counterweight part can move up and down in the rectangular empty slot.
In the novel energy-saving hoisting device for the shore bridge, the motor device is arranged in a machine room of the shore bridge towards the sea side.
Compared with the prior art, the invention has simpler structure, the invention arranges the lifting device comprising two reduction boxes, a first winding drum and a second winding drum which are symmetrically arranged in the machine room, and the lifting device is connected with the counterweight part through the counterweight steel wire rope arranged on the first winding drum and the lifting steel wire rope arranged on the second winding drum, thereby achieving the purpose of offsetting partial weight of the trolley lifting appliance and goods by using the counterweight part. The invention can achieve the purposes of energy saving and consumption reduction, and can also reduce the operation cost of the shore bridge system.
Compared with the traditional shore bridge system, the pitching device, the trolley walking device and the lifting device are arranged in the machine room, and are sequentially arranged from the machine room to the sea side to the land side, so that the space of the machine room is fully utilized, and the structural arrangement is compact. The lifting device is connected with the counterweight by using the counterweight steel wire rope arranged on the first winding drum and the lifting steel wire rope arranged on the second winding drum, and partial weight of the trolley lifting appliance and goods is offset by using the counterweight, so that 25% of energy can be effectively saved. By connecting the first winding drum with the two symmetrical reduction boxes and respectively connecting the two reduction boxes with the second winding drum, compared with a hoisting mechanism in the prior art, the structural connection mode reduces one winding drum, so that a counterweight steel wire rope does not need to be directly connected with a trolley lifting appliance and goods (containers), the problems of complex balance steel wire rope winding system and interference in the traditional mode are avoided, and the structural connection mode is simpler to maintain. The first output shaft of the reduction gearbox is connected with the first winding drum, and the second output shaft of the reduction gearbox is connected with the second winding drum, so that the lifting distance of the counterweight in the stand column can be reduced under the condition of setting a reasonable transmission ratio. The invention only needs two reduction boxes and three winding drums in total, and compared with a lifting energy-saving mechanism developed before a company, the invention reduces two reduction boxes and one winding drum, and has simpler and more compact structure and lower maintenance cost.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of an energy-saving hoisting device of the invention;
FIG. 2 is a schematic structural diagram of the energy-saving hoisting device of the invention connected with a counterweight;
FIG. 3 is a schematic view of the layout structure in the machine room of the present invention;
fig. 4 is a schematic structural diagram of the machine room of the invention installed on a shore bridge device.
Reference numerals: 1-a shore bridge device, 2-a shore bridge machine room, 3-a hoisting device, 4-a reduction box, 5-an input shaft, 6-a first output shaft, 7-a second output shaft, 8-a first reel, 9-a second reel, 10-a motor device, 11-a coupler, 12-a counterweight wire rope, 13-a hoisting wire rope, 14-a trolley hanger, 15-a trolley travelling device, 16-a first braking device, 17-a second braking device, 18-a pitching device, 19-a counterweight, 20-a supporting bridge column leg, and 21-a rectangular empty slot.
The invention is further described with reference to the following figures and detailed description.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example 1 of the invention: a novel shore bridge energy-saving hoisting device is arranged on a shore bridge device 1, the novel shore bridge energy-saving hoisting device is arranged on a hoisting device 3 in a shore bridge machine room 2, the hoisting device 3 comprises two symmetrically arranged reduction boxes 4, an input shaft 5, a first output shaft 6 and a second output shaft 7 are arranged on the reduction boxes 4, and the input shaft 5 and the first output shaft 6 are arranged on the same side; the hoisting device 3 further comprises a motor device 10 connected with the input shaft 5 of the reduction gearbox 4 and a first winding drum 8 connected with the first output shaft 6 of the reduction gearbox 4, a second winding drum 9 is arranged between the two symmetrically arranged reduction gearboxes 4, and two ends of the second winding drum 9 are respectively connected with the second output shafts 7 of the two symmetrically arranged reduction gearboxes 4.
Example 2 of the invention: a novel shore bridge energy-saving hoisting device is arranged on a shore bridge device 1, the novel shore bridge energy-saving hoisting device is arranged on a hoisting device 3 in a shore bridge machine room 2, the hoisting device 3 comprises two symmetrically arranged reduction boxes 4, an input shaft 5, a first output shaft 6 and a second output shaft 7 are arranged on the reduction boxes 4, and the input shaft 5 and the first output shaft 6 are arranged on the same side; the hoisting device 3 further comprises a motor device 10 connected with the input shaft 5 of the reduction gearbox 4 and a first winding drum 8 connected with the first output shaft 6 of the reduction gearbox 4, a second winding drum 9 is arranged between the two symmetrically arranged reduction gearboxes 4, and two ends of the second winding drum 9 are respectively connected with the second output shafts 7 of the two symmetrically arranged reduction gearboxes 4. Further, the hoisting device 3 further comprises two couplers 11, and the input shaft 5 of each reduction gearbox 4 is connected with the motor device 10 through one coupler 11. Wherein the first reel 8 is provided with a counterweight steel wire rope 12 connected with a counterweight 19. Wherein the second winding drum 9 is provided with a hoisting steel wire rope 13 connected with a trolley lifting appliance 14. The first winding drum is a counterweight winding drum and is used for being connected with a counterweight part through a counterweight steel wire rope. The second winding drum is a goods lifting winding drum and is used for lifting goods through a lifting steel wire rope.
Example 3 of the invention: a novel shore bridge energy-saving hoisting device is arranged on a shore bridge device 1, the novel shore bridge energy-saving hoisting device is arranged on a hoisting device 3 in a shore bridge machine room 2, the hoisting device 3 comprises two symmetrically arranged reduction boxes 4, an input shaft 5, a first output shaft 6 and a second output shaft 7 are arranged on the reduction boxes 4, and the input shaft 5 and the first output shaft 6 are arranged on the same side; the hoisting device 3 further comprises a motor device 10 connected with the input shaft 5 of the reduction gearbox 4 and a first winding drum 8 connected with the first output shaft 6 of the reduction gearbox 4, a second winding drum 9 is arranged between the two symmetrically arranged reduction gearboxes 4, and two ends of the second winding drum 9 are respectively connected with the second output shafts 7 of the two symmetrically arranged reduction gearboxes 4. Further, the hoisting device 3 further comprises two couplers 11, and the input shaft 5 of each reduction gearbox 4 is connected with the motor device 10 through one coupler 11. Wherein the first reel 8 is provided with a counterweight steel wire rope 12 connected with a counterweight 19. Wherein the second winding drum 9 is provided with a hoisting wire rope 13 connected with a trolley lifting appliance 14. Further, a pitching device 18 and a trolley travelling device 15 are further arranged in the shore bridge machine room 2, and the trolley travelling device 15 is arranged between the pitching device 18 and the hoisting device 3. The first reel 8 is provided with a first braking device 16. The second reel 9 is provided with a second braking device 17. The shore bridge device 1 comprises a support bridge leg 20, a rectangular empty slot 21 is arranged in the support bridge leg 20, and the counterweight 19 is arranged in the rectangular empty slot 21. The counterweight part is connected with the first reel through a counterweight steel wire rope, so that the counterweight part can move up and down in the rectangular empty slot. The motor device 10 is located in the shore bridge machine room 2 and is arranged towards the sea side.
The working principle of the invention is as follows:
when the crane works, the motor device 10 connected with the input shaft 5 of the reduction gearbox 4 drives the second reel 9 and the first reel 8 to rotate through transmission of the reduction gearbox 4, the second reel 9 winds the hoisting steel wire rope 13 to drive the trolley lifting appliance 14 to ascend and descend, meanwhile, the first reel 8 winds the counterweight steel wire rope 12 to move in the rectangular empty groove 21 in the support bridge leg 20 in the direction opposite to the trolley lifting appliance, therefore, the counterweight piece 19 has opposite torque with the trolley lifting appliance 14 and goods (containers) through the counterweight steel wire rope 12, the first reel 8 and the two reduction gearboxes 4 which are symmetrically arranged, and the counterweight piece 19 balances the weight of a part of the trolley lifting appliance 14 and the goods, so that the power of the motor device 10 is reduced, and the purpose of energy conservation is achieved.
Claims (9)
1. The novel shore bridge energy-saving hoisting device is characterized by being arranged on a shore bridge device (1), the novel shore bridge energy-saving hoisting device is arranged on a hoisting device (3) in a shore bridge machine room (2), the hoisting device (3) comprises two symmetrically arranged reduction boxes (4), an input shaft (5), a first output shaft (6) and a second output shaft (7) are arranged on the reduction boxes (4), and the input shaft (5) and the first output shaft (6) are arranged on the same side; the lifting device (3) further comprises a motor device (10) connected with an input shaft (5) of the reduction gearbox (4) and a first winding drum (8) connected with a first output shaft (6) of the reduction gearbox (4), a second winding drum (9) is arranged between the two symmetrically arranged reduction gearboxes (4), and two ends of the second winding drum (9) are respectively connected with second output shafts (7) of the two symmetrically arranged reduction gearboxes (4).
2. The novel shore bridge energy-saving hoisting device as claimed in claim 1, wherein the hoisting device (3) further comprises two couplings (11), and the input shaft (5) of each reduction gearbox (4) is connected with the motor device (10) through one coupling (11).
3. The novel shore bridge energy-saving hoisting device as claimed in claim 1, wherein a counterweight steel wire rope (12) connected with a counterweight (19) is arranged on the first winding drum (8).
4. The novel shore bridge energy-saving hoisting device according to claim 1, wherein the second winding drum (9) is provided with a hoisting cable (13) connected with a trolley spreader (14).
5. The novel energy-saving hoisting device for the shore bridge is characterized in that a pitching device (18) and a trolley travelling device (15) are further arranged in the shore bridge machine room (2), and the trolley travelling device (15) is arranged between the pitching device (18) and the hoisting device (3).
6. The novel shore bridge energy-saving hoisting device as claimed in claim 1, wherein a first braking device (16) is arranged on the first winding drum (8).
7. The novel shore bridge energy-saving hoisting device as claimed in claim 1, wherein a second brake device (17) is arranged on the second winding drum (9).
8. The novel shore bridge energy-saving hoisting device as claimed in claim 3, wherein the shore bridge device (1) comprises a support bridge leg (20), a rectangular slot (21) is arranged in the support bridge leg (20), and the counterweight (19) is arranged in the rectangular slot (21).
9. The novel shore bridge energy-saving hoisting device as claimed in claim 1, wherein the motor device (10) is arranged on the sea side of the shore bridge machine room (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110865476.1A CN114803875A (en) | 2021-07-29 | 2021-07-29 | Novel bank bridge energy-saving lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110865476.1A CN114803875A (en) | 2021-07-29 | 2021-07-29 | Novel bank bridge energy-saving lifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114803875A true CN114803875A (en) | 2022-07-29 |
Family
ID=82526750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110865476.1A Pending CN114803875A (en) | 2021-07-29 | 2021-07-29 | Novel bank bridge energy-saving lifting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114803875A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030019828A1 (en) * | 2001-07-30 | 2003-01-30 | Choi Yong Wook | Hoist apparatus using a counter weight technology |
| CN201193194Y (en) * | 2008-02-04 | 2009-02-11 | 上海港机重工有限公司 | Double lifting mechanism of container crane |
| JP2012126528A (en) * | 2010-12-16 | 2012-07-05 | Mitsui Eng & Shipbuild Co Ltd | Quay crane |
| CN112573408A (en) * | 2019-09-30 | 2021-03-30 | 华电重工股份有限公司 | Reduction box counterweight energy-saving system for shore bridge |
| CN112744716A (en) * | 2019-10-30 | 2021-05-04 | 华电重工股份有限公司 | Reduction box counterweight energy-saving system for crossing shore bridge |
| CN113003411A (en) * | 2019-12-19 | 2021-06-22 | 华电重工股份有限公司 | Energy-saving shore bridge with traversing reduction box counterweight |
| CN216155342U (en) * | 2021-07-29 | 2022-04-01 | 华电蓝科科技股份有限公司 | Novel bank bridge energy-saving lifting device |
-
2021
- 2021-07-29 CN CN202110865476.1A patent/CN114803875A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030019828A1 (en) * | 2001-07-30 | 2003-01-30 | Choi Yong Wook | Hoist apparatus using a counter weight technology |
| CN201193194Y (en) * | 2008-02-04 | 2009-02-11 | 上海港机重工有限公司 | Double lifting mechanism of container crane |
| JP2012126528A (en) * | 2010-12-16 | 2012-07-05 | Mitsui Eng & Shipbuild Co Ltd | Quay crane |
| CN112573408A (en) * | 2019-09-30 | 2021-03-30 | 华电重工股份有限公司 | Reduction box counterweight energy-saving system for shore bridge |
| CN112744716A (en) * | 2019-10-30 | 2021-05-04 | 华电重工股份有限公司 | Reduction box counterweight energy-saving system for crossing shore bridge |
| CN113003411A (en) * | 2019-12-19 | 2021-06-22 | 华电重工股份有限公司 | Energy-saving shore bridge with traversing reduction box counterweight |
| CN216155342U (en) * | 2021-07-29 | 2022-04-01 | 华电蓝科科技股份有限公司 | Novel bank bridge energy-saving lifting device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7461832B2 (en) | Twin lifting machinery for two 40 feet container shore crane | |
| CN102616666A (en) | Semi-traction dolly type light-weight portal crane | |
| CN216155342U (en) | Novel bank bridge energy-saving lifting device | |
| CN104016255A (en) | Double-direction turning and lifting device | |
| CN201338920Y (en) | Lifting mechanism of crane | |
| CN216272838U (en) | Differential transmission hoister | |
| CN202220059U (en) | Fully variable frequency electric maintenance crane for rock breaking plant | |
| CN114803875A (en) | Novel bank bridge energy-saving lifting device | |
| CN209411654U (en) | Double rocking arm set tower pole lifting power-equipments | |
| CN211444755U (en) | Counterweight energy-saving system for crossing shore bridge | |
| CN202643173U (en) | Movable arm type crane with detachable hoisting arm | |
| CN107161843A (en) | Eight rope single actions look for case system | |
| CN208747486U (en) | A kind of balance hanging beam group suspender | |
| CN201214609Y (en) | Non-gearing crane | |
| CN206538113U (en) | Auxiliary hoisting device for swing arm tower crane | |
| CN211444789U (en) | Pass through formula balanced heavy energy-conserving bank bridge's computer lab | |
| CN211895766U (en) | A balanced heavy economizer system for bank bridge | |
| CN210286532U (en) | Hydraulic dragging lifting type double-beam steel wire rope crane | |
| CN100448770C (en) | Quayside container crane double hoist system | |
| CN216918344U (en) | Machine room arrangement structure of hoisting energy-saving mechanism of crossing type shore bridge | |
| CN216155343U (en) | A balanced economizer system for bank bridge | |
| CN202988623U (en) | Compact high-lift hoisting mechanism | |
| CN102718153A (en) | Flexible-cable parallel-configuration equipment for cooperatively large-scale heavy-load hoisting within six degrees of spatial freedom | |
| CN102730576A (en) | Energy saving fixed type crane | |
| CN203021231U (en) | Bridge crane and lifting mechanism thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |